Chandra Snapshot Observations of Soft X-Ray Transient AGN

Details Chandra Snapshot Observations of Soft X-Ray Transient AGN Chandra Snapshot Observations of Soft X-Ray Transient AGN

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..924e&link_type=abstract

Chandra Proposal ID #03700241

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Chandra Proposal Id #03700241

Scientific paper

We propose short Chandra observations of 4 known soft X-ray transient AGN and 4 candidate transient objects. These new measurements will provide tight constraints on the X-ray luminosity of these sources and, when combined with previous ROSAT measurements, will give ``corrected'' light curves spanning ten years, providing a key test of Rees' t^-5/3 decay model for stellar disruption events in galactic nuclei. If alternatively the transient behavior is due the episodic nature of an otherwise normal AGN, then it is plausible that the spatial distribution of extended X-ray emission in the nucleus could provide evidence of earlier activity cycles. Finally, if the candidate transient sources show the predicted factor of ~100 fading this will double the number of known transients.

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